CN220167074U - Direct flushing valve and toilet bowl - Google Patents
Direct flushing valve and toilet bowl Download PDFInfo
- Publication number
- CN220167074U CN220167074U CN202320611589.3U CN202320611589U CN220167074U CN 220167074 U CN220167074 U CN 220167074U CN 202320611589 U CN202320611589 U CN 202320611589U CN 220167074 U CN220167074 U CN 220167074U
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- water outlet
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- valve
- outlet pipeline
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- 238000011010 flushing procedure Methods 0.000 title claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 162
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 238000010079 rubber tapping Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000002265 prevention Effects 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/40—Protecting water resources
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- Sanitary Device For Flush Toilet (AREA)
Abstract
The utility model provides a direct flushing valve and a toilet, wherein the direct flushing valve is adopted without a water storage tank, so that the whole volume of the toilet is greatly reduced, the weight is greatly reduced, and the direct flushing valve is more suitable for wall-mounted arrangement; meanwhile, the vacuum breaker is arranged, so that the reverse suction condition in the waterway can be effectively avoided, and the requirement of the standard on siphon prevention is met; the water outlet hose has higher degree of freedom and can be bent at will, so that the whole direct flushing valve can be arranged in a toilet or a wall body, and the construction and the installation are convenient; meanwhile, only a water outlet connector is reserved on the toilet, and a water runner is not required to be arranged in the toilet; so the structure inside the toilet is simple and easy to form, and the production cost is greatly reduced.
Description
Technical Field
The utility model relates to the technical field of bathrooms, in particular to a direct flushing valve and a toilet.
Background
Currently, most toilet bowl (toilet bowl) flushes are usually performed in two ways: one is provided with a water storage tank which is flushed by utilizing gravitational potential energy of water; the other is that a water storage tank is not arranged, a water pipe with a larger size is directly connected through a flushing valve, and the toilet is directly flushed by using large water quantity. For the first flushing mode, a higher water storage tank is generally required to ensure flushing force, and the whole toilet is heavy and occupies a larger space; for the second flushing mode, the flushing valve is directly communicated with the waterway, and when water is stopped, the phenomenon of back suction can be generated, so that water pollution is caused, and although the check valve is arranged at present, the structure does not meet the standard requirement for siphon prevention. And the structure of the inside of the existing closestool is more complicated, a water flow channel and a water outlet hole which are communicated with a waterway are arranged, the integral forming of the closestool is more complicated, the cost is higher, and the yield is lower.
Disclosure of Invention
Accordingly, the present utility model is directed to a direct flushing valve and a toilet. To solve the above problems.
The utility model adopts the following scheme:
the utility model provides a direct-flushing valve, which comprises a valve assembly, a vacuum breaker, a first water outlet pipeline, a second water outlet pipeline and an operating device, wherein the valve assembly is connected with the vacuum breaker; the vacuum breaker is disposed upstream of the valve assembly; the valve assembly comprises a first valve body and a valve core; a valve core cavity is arranged in the first valve body, one end of the valve core cavity is provided with a water outlet, the side surface of the valve core cavity is provided with a water inlet, and the valve core is movably arranged in the valve core cavity and is configured to open or close the water outlet under the action of the operating device; the water outlet is connected with the first water outlet pipeline and the second water outlet pipeline in a tapping mode, and the first water outlet pipeline and the second water outlet pipeline adopt water outlet hoses.
Further, the water treatment device also comprises a third water outlet pipeline; the valve core and the other end of the valve core cavity are provided with a back pressure cavity, and the valve core is provided with at least one first through hole which is communicated with the back pressure cavity and the water inlet; one end of the third water outlet pipeline is connected with the back pressure cavity, and the other end of the third water outlet pipeline is connected with the first water outlet pipeline or the second water outlet pipeline; the operating device is arranged on the third water outlet pipeline and is configured to: and the third water outlet pipeline is opened under the action of external force, so that the back pressure cavity is rapidly depressurized, and the valve core is further away from the water outlet, so that the water inlet is communicated with the water outlet.
Further, the operating device comprises a second valve body, a key rod and an elastic piece; the second valve body is internally provided with a pressure relief cavity, the pressure relief cavity is provided with a first pressure relief opening and a second pressure relief opening, and is provided with a drainage path connected with the second pressure relief opening and a pressure relief waterway connected with the first pressure relief opening; the pressure release cavity is internally and movably provided with a first pressure release pad and a second pressure release pad, and the second pressure release pad is provided with at least one second through hole communicated with the third water outlet pipeline and the pressure release cavity; the pressure receiving area of the first pressure relief pad is smaller than that of the second pressure relief pad; one end of the key rod is arranged in the pressure release cavity through the first pressure release opening and is connected with the first pressure release pad; the elastic piece is used for enabling the key rod to restore to the initial position; the key lever is configured to: the first pressure relief cushion is driven to open under the action of external force, so that the pressure relief cavity and the third water outlet pipeline generate pressure difference, the second pressure relief cushion is far away from the second pressure relief opening, the third water outlet pipeline is communicated with the second pressure relief opening, the back pressure cavity is further enabled to rapidly relieve pressure and the water inlet to form pressure difference, the valve core is far away from the water outlet, and the water inlet is communicated with the water outlet.
Further, a first flow restrictor is included and is disposed upstream of the vacuum breaker.
Further, the device also comprises a second flow restrictor which is arranged on the first water outlet pipeline.
Further, the second restrictor limits the ratio of water output from the first water output line to the second water output line to 3:7.
The utility model also provides a toilet bowl, which comprises the direct flushing valve, wherein the first water outlet pipeline is connected with the upper water outlet of the toilet bowl, and the second water outlet pipeline is connected with the lower water outlet of the toilet bowl.
Further, the toilet is a toilet with a siphon structure.
By adopting the technical scheme, the utility model can obtain the following technical effects:
1. the direct flushing valve is adopted without a water storage tank, so that the whole volume of the toilet is greatly reduced, the weight is greatly reduced, and the toilet is more suitable for wall-mounted arrangement; meanwhile, the vacuum breaker is arranged, so that the reverse suction condition in the waterway can be effectively avoided, and the requirement of the standard on siphon prevention is met.
2. The water outlet hose has higher degree of freedom and can be bent at will, so that the whole direct flushing valve can be arranged in a toilet or a wall body, and the construction and the installation are convenient; meanwhile, only a water outlet connector is reserved on the toilet, and a water runner is not required to be arranged in the toilet; so the structure inside the toilet is simple and easy to form, and the production cost is greatly reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a straight-through valve according to an embodiment of the present utility model;
FIG. 2 is a partially exploded view of a direct-acting valve according to an embodiment of the present utility model;
FIG. 3 is a schematic cross-sectional view of a straight-through valve according to an embodiment of the present utility model;
FIG. 4 is a schematic view of the flow of water when the direct-flushing valve is closed according to the embodiment of the utility model;
FIG. 5 is a schematic view of the flow of water when the direct-flushing valve is opened according to the embodiment of the utility model;
FIG. 6 is a schematic cross-sectional view of an operating device of a direct-acting valve according to an embodiment of the present utility model;
FIG. 7 is a schematic view of water flow when the operation device of the direct-flushing valve is closed;
FIG. 8 is a schematic view of water flow when an operation device of a direct-flushing valve is opened according to an embodiment of the present utility model;
FIG. 9 is a schematic view showing an exploded structure of a toilet bowl according to an embodiment of the present utility model;
fig. 10 is a schematic perspective view of a toilet according to an embodiment of the present utility model;
FIG. 11 is a schematic view of a cross-sectional structure of a toilet according to an embodiment of the present utility model;
FIG. 12 is a schematic view showing a cross-sectional structure of a toilet according to an embodiment of the present utility model;
icon: the valve assembly 1, the operating device 2, the third water outlet pipeline 3, the first water outlet pipeline 4, the second water outlet pipeline 5, the vacuum breaker 6, the first flow restrictor 7, the first valve body 11, the valve core 12, the valve core cavity 13, the water outlet 14, the water inlet 15, the back pressure cavity 16, the second valve body 21, the key lever 22, the elastic piece 23, the pressure release cavity 24, the first pressure release opening 25, the second pressure release opening 26, the water drainage pipeline 27, the pressure release waterway 28, the first pressure release pad 29, the second pressure release pad 30 and the toilet bowl 31.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, are intended to fall within the scope of the present utility model. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, are intended to fall within the scope of the present utility model.
Examples
As shown in fig. 1 to 5, the present embodiment provides a direct-flushing valve including a valve assembly 1, an operating device 2, a first water outlet pipe 4, a second water outlet pipe 5, a third water outlet pipe 3, and a direct-flushing valve 6; the valve assembly 1 comprises a first valve body 11 and a valve core 12; a valve core cavity 13 is arranged in the first valve body 11, a water outlet 14 is arranged at one end of the valve core cavity 13, a water inlet 15 is arranged on the side surface of the valve core cavity, the directions of the water outlet 14 and the water inlet 15 are mutually perpendicular, and the water outlet 14 is arranged along the vertical direction; the valve core 12 is movably arranged in the valve core cavity 13 and is used for opening or closing the water outlet 14; the water outlet 14 is connected with the first water outlet pipeline 4 and the second water outlet pipeline 5 in a tapping way; the other ends of the valve core 12 and the valve core cavity 13 are provided with a back pressure cavity 16, and the valve core 12 is provided with at least one first through hole (shown in the drawing) for communicating the back pressure cavity 16 with the water inlet 15; the water flow enters the back pressure cavity 16 through the first through hole, the valve core 12 descends to be close to the water outlet 14 under the action of the water pressure of the back pressure cavity 16, and the direct-flushing valve is closed. And a vacuum breaker 6 is arranged at the upstream of the direct flushing valve and communicated with a water inlet 15 of the direct flushing valve. The vacuum breaker 6 is a product in the prior art, and comprises a valve core, a sealing gasket, a valve cover and the like, and the specific working principle structure and the like of the vacuum breaker are not described herein, so that the vacuum breaker can automatically eliminate the vacuum in a water supply pipeline and effectively prevent siphon backflow. The first water outlet pipeline 4, the second water outlet pipeline 5 and the third water outlet pipeline 3 are all water outlet hoses; the water outlet hose has higher freedom degree, can be bent at will, can better arrange the direct flushing valve in a wall body or a toilet 31 structure, and is convenient to construct and install; meanwhile, only a water outlet connector is reserved on the toilet, and a water runner is not required to be arranged in the toilet; so the structure inside the toilet is simple and easy to form, and the production cost is greatly reduced.
As shown in fig. 6 to 8, the operating device 2 includes a second valve body 21, a key lever 22, and an elastic member 23; the second valve body 21 is internally provided with the pressure relief cavity 24; the pressure relief cavity 24 is provided with a first pressure relief opening 25 and a second pressure relief opening 26, and is provided with a drainage path 27 communicated with the second pressure relief opening 26 and a pressure relief waterway 28 communicated with the first pressure relief opening 25 and the drainage path 27; a first pressure relief pad 29 and a second pressure relief pad 30 are movably arranged in the pressure relief cavity 24, and the second pressure relief pad 30 is provided with at least one second through hole (not shown in the drawing) which is communicated with the third water outlet pipeline 3 and the pressure relief cavity 24; one end of the key rod 22 is arranged in the pressure release cavity 24 through the first pressure release opening 25 and is connected with the first pressure release pad 29; the elastic piece 23 is used for enabling the key rod 22 to restore to the initial position; the pressure receiving area of the first pressure release pad 29 is smaller than that of the second pressure release pad 30, and since the pressure release chamber 24 in the operating device 2 is communicated with the back pressure chamber 16, the pressure in the chamber is the same, and the smaller the pressure receiving area is, according to F (force) =p (pressure) ×s (cross-sectional area), so by designing the first pressure release pad 29 with smaller pressure receiving area, the first pressure release port 25 can be easily opened with smaller force, the pressure difference is generated between the pressure release chamber 24 and the third water outlet pipeline 3, so that the second pressure release pad 30 is far away from the second pressure release port 26, the third water outlet pipeline 3 is communicated with the second pressure release port 26, the back pressure chamber 16 is further quickly depressurized to form the pressure difference with the water inlet 15, the valve core 12 is far away from the water outlet 14, and the water inlet 15 and the water outlet 14 are connected with the direct flushing valve for flushing.
It should be noted that, after the water flow enters the pressure release chamber 24 through the second through hole, the first pressure release pad 29 and the second pressure release pad 30 receive an upward thrust and a downward thrust respectively, so as to close the first pressure release opening 25 and the second pressure release opening 26; the elastic member 23 can make the first pressure release pad 29 move upward faster to close the first pressure release opening 25, and the first pressure release pad 29 itself receives hydraulic thrust, so that the elastic member 23 does not need to have a large elastic force. Of course, in other embodiments, the operating device 2 may also include other decorative items, such as buttons, decorative panels, etc. connected to the key lever 22, which are not specifically described herein.
The operation of the operating device 2 is described in detail below:
in the initial state, the pressure release chamber 24 is communicated with the back pressure chamber 16 through the third water outlet pipeline 3, so that the pressure in the pressure release chamber 24 has the same water pressure, and the first pressure release pad 29 and the second pressure release pad 30 respectively close the first pressure release opening 25 and the second pressure release opening 26 under the action of the water pressure; the user makes the first pressure relief pad 29 keep away from first pressure relief mouth 25 through pressing key bar 22, makes first pressure relief mouth 25 with pressure relief water route 28 intercommunication makes pressure release chamber 24 with third water outlet pipeline 3 produces pressure differential, thereby makes second pressure relief pad 30 keep away from second pressure relief mouth 26, third water outlet pipeline 3 passes through second pressure relief mouth 26 with drainage way 27 intercommunication, and then makes back pressure chamber 16 quick pressure release with water inlet 15 forms pressure differential, makes case 12 is kept away from delivery port 14, thereby makes water inlet 15 with delivery port 14 intercommunication realizes the bath of direct flushing valve.
In this embodiment, the first restrictor 7 is further disposed upstream of the vacuum breaker 6, so that the fluctuation of the flushing amount of the toilet under high and low pressure conditions can be ensured to be within the standard requirement range, and the problems of loud noise and possible splashing during high pressure flushing are effectively avoided. The first water outlet pipeline 4 is also provided with a second restrictor which is mainly used for controlling the water outlet proportion of the first water outlet pipeline 4 and the second water outlet pipeline 5, the first water outlet pipeline 4 is used for being connected with an upper water outlet head of the toilet bowl 31, and the second water outlet pipeline 5 is used for being connected with a lower water outlet head of the toilet bowl 31; preferably, the water outlet ratio is set to 3:7, so that the flushing effect of the toilet bowl 31 can be effectively ensured.
As shown in fig. 9 to 11, the present utility model further provides a toilet bowl 31, which includes the direct flushing valve, the first water outlet pipeline 4 is connected to the upper water outlet of the toilet bowl 31, and the second water outlet pipeline 5 is connected to the lower water outlet of the toilet bowl 31. The toilet 31 is a toilet having a siphon structure. The water flow pipeline can be directly connected through the direct flushing valve, a water storage tank is not required to be arranged, the whole volume is greatly reduced, the weight is greatly reduced, and the wall-mounted water storage device is more suitable for wall-mounted arrangement; meanwhile, the vacuum breaker is arranged, so that the condition of suck-back in a waterway can be effectively avoided; and the operation device arranged by the hydraulic principle can realize that the flushing of the toilet bowl 31 can be easily realized by adopting smaller force.
The utility model provides a direct flushing valve and a toilet bowl, which comprise: the direct flushing valve is adopted to directly connect into the waterway without arranging a water storage tank, so that the whole volume of the toilet is greatly reduced, the weight is greatly reduced, and the toilet is more suitable for wall-hanging arrangement; meanwhile, the vacuum breaker 6 is arranged, so that the reverse suction condition in the waterway can be effectively avoided, and the requirement of the standard on siphon prevention is met; the water outlet hose has higher degree of freedom and can be bent at will, so that the whole direct flushing valve can be arranged in the toilet 31 or the wall body, and the construction and the installation are convenient; meanwhile, only a water outlet connector is reserved on the toilet 31, and a water runner is not required to be arranged in the toilet 31; so the structure of the interior of the toilet 31 is simple and easy to form, and the production cost is greatly reduced; the operating device 2, which is arranged by the principle of hydraulic pressure, can realize that the flushing of the toilet bowl 31 can be easily realized by adopting small force.
The above is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
Claims (8)
1. The direct flushing valve is characterized by comprising a valve assembly, a vacuum breaker, a first water outlet pipeline, a second water outlet pipeline and an operating device; the vacuum breaker is disposed upstream of the valve assembly; the valve assembly comprises a first valve body and a valve core; a valve core cavity is arranged in the first valve body, one end of the valve core cavity is provided with a water outlet, the side surface of the valve core cavity is provided with a water inlet, and the valve core is movably arranged in the valve core cavity and is configured to open or close the water outlet under the action of the operating device; the water outlet is connected with the first water outlet pipeline and the second water outlet pipeline in a tapping mode, and the first water outlet pipeline and the second water outlet pipeline adopt water outlet hoses.
2. The direct-flow valve according to claim 1, further comprising a third water outlet line; the valve core and the other end of the valve core cavity are provided with a back pressure cavity, and the valve core is provided with at least one first through hole which is communicated with the back pressure cavity and the water inlet; one end of the third water outlet pipeline is connected with the back pressure cavity, and the other end of the third water outlet pipeline is connected with the first water outlet pipeline or the second water outlet pipeline; the operating device is arranged on the third water outlet pipeline and is configured to: and the third water outlet pipeline is opened under the action of external force, so that the back pressure cavity is rapidly depressurized, and the valve core is further away from the water outlet, so that the water inlet is communicated with the water outlet.
3. The direct-acting valve according to claim 2, wherein the operating means comprises a second valve body, a key lever, and an elastic member; the second valve body is internally provided with a pressure relief cavity, the pressure relief cavity is provided with a first pressure relief opening and a second pressure relief opening, and is provided with a drainage path connected with the second pressure relief opening and a pressure relief waterway connected with the first pressure relief opening; the pressure release cavity is internally and movably provided with a first pressure release pad and a second pressure release pad, and the second pressure release pad is provided with at least one second through hole communicated with the third water outlet pipeline and the pressure release cavity; the pressure receiving area of the first pressure relief pad is smaller than that of the second pressure relief pad; one end of the key rod is arranged in the pressure release cavity through the first pressure release opening and is connected with the first pressure release pad; the elastic piece is used for enabling the key rod to restore to the initial position; the key lever is configured to: the first pressure relief cushion is driven to open under the action of external force, so that the pressure relief cavity and the third water outlet pipeline generate pressure difference, the second pressure relief cushion is far away from the second pressure relief opening, the third water outlet pipeline is communicated with the second pressure relief opening, the back pressure cavity is further enabled to rapidly relieve pressure and the water inlet to form pressure difference, the valve core is far away from the water outlet, and the water inlet is communicated with the water outlet.
4. The direct-flow valve of claim 1, further comprising a first restrictor disposed upstream of the vacuum breaker.
5. The direct-flow valve according to claim 1, further comprising a second restrictor disposed on the first outlet line.
6. The direct-flow valve of claim 5, wherein the second restrictor defines a water outlet ratio of the first water outlet line and the second water outlet line as 3:7.
7. A toilet bowl, characterized by comprising a direct flushing valve according to any one of claims 1-6, said first water outlet conduit being connected to an upper water outlet of the toilet bowl, and said second water outlet conduit being connected to a lower water outlet of the toilet bowl.
8. The toilet according to claim 7, wherein the toilet is a toilet having a siphon structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320611589.3U CN220167074U (en) | 2023-03-24 | 2023-03-24 | Direct flushing valve and toilet bowl |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320611589.3U CN220167074U (en) | 2023-03-24 | 2023-03-24 | Direct flushing valve and toilet bowl |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220167074U true CN220167074U (en) | 2023-12-12 |
Family
ID=89054444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320611589.3U Active CN220167074U (en) | 2023-03-24 | 2023-03-24 | Direct flushing valve and toilet bowl |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220167074U (en) |
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2023
- 2023-03-24 CN CN202320611589.3U patent/CN220167074U/en active Active
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